HID Global OMNIKEY 5427ck - Smart Card Reader - USB, Black, Light Gray OMNIKEY 5427 CK R54270001 USB Smart Card Reader Reads High & Low Frequencies Contactless Smart Cards CCID and Keyboard Wedge Interfaces Security  Enhanced system security supporting low and high frequency credentials including HID Prox & Indala, MIFARE Classic, MIFARE DESFire EV1, iCLASS, iCLASS SE, iCLASS Seos, iCLASS Elite, and other SIO-enabled credentials. Small 2.79'' x 3.66'' x 0.63 3.53 oz